SU904859A1 - Horisontal forging machine - Google Patents

Description

(5) HORIZONTAL AND FORGING MACHINE

one

The invention relates to the processing of metals by pressure, namely to the structures of horizontal forging machines.

A horizontally forged machine is known, comprising a frame on which a crank shaft is mounted, on the main crank of which a crank mechanism of the main slider is mounted and a side slider kinematically connected with it with a clamping mechanism til.

Horizontal forging machines with a cam-driven clamping mechanism by selecting the cam profile ensure a stable dwell of the dies during the stamping process. However, in the process of operation, the fist of the drive of the clamping mechanism contacts the side slider roller, as well as all cam mechanisms along the line, and to ensure normal operation and prevent premature wear of the rollers and fists of the mechanism, the contact stresses should not go beyond the permissible limits. This limits the possibilities of the clamping mechanism and does not allow creating a force of engagement equal to the nominal force of disembarkation and, moreover, exceeding it and, consequently, stamping with a clamping slide.

Based on the capabilities of the cam drive to ensure normal operation in existing horizontal forging machines, the clamping force is assumed to be 1/3 of the nominal upsetting force, which is quite enough to hold the workpiece in the dies during punching.

However, a number of products require that the clamping force of the dies exceed the nominal upsetting force by 1.5-2 or more times, as, for example, when stamping articles from tubular blanks. In many cases, there is a need to produce a punching with a clamping slider, such as, for example, when manufacturing drill rods and others, products that do not gnaw to provide a cam drive for horizontal forging machines.

The purpose of the invention is to increase the force transmitted to the clamping mechanism.

The goal is achieved by the fact that the machine is equipped with an additional crank mounted on the crank shaft, as well as an additional connecting rod, the slider of which is installed in a hollow cavity with guides made in the side slider.

FIG. Figure 1 shows the kinematic scheme of a horizontal forging machine; in fig. 2 - drive clamp mechanism. The horizontal forging machine contains the motor drive motor 1, the pulley 2, the V-belt drive 3, the flywheel coupling C mounted on the drive shaft 5, on which the drive brake 6 is mounted, gear 7, transmitting rotation through the gear wheel 8 to the crank shaft 9, s the connecting rod 10 of the heading slide 11 is connected to the punches 12 mounted on it. The cranks 13 and I of the drive of the clamping mechanism are mounted on the crank shaft, which come into contact with the rollers 15 and 16 of the side runner 17, the connecting rod 18, the slider 19, mounted in the side guides 17 th slide and tells him the movement during the stroke. A safety device 20 is mounted on the side slider through which the side slider is connected to the clamping slider 2C with the help of levers 21-23 With the movable matrix 25 mounted on it. The stationary matrix 26 is mounted on the frame of the machine. The spring 27 of the reverse roller provides a constant contact of the roller 1b with the lacquer 14. The machine works as follows. Rotation from the electric motor 1 via the pulley 2, the belt drive 3 is transmitted to the flywheel k, in which the clutch is mounted. When the signal to turn on the machine, the brake 6 releases the shaft 5, after which a signal is given to turn on the clutch, which engages the flywheel k with the drive shaft 5. The rotation from the shaft 5 through gear 7 is transmitted to the gear wheel 8 attached to the crank shaft 9. Movement from crank

shaft 9 is transmitted along two chains: through the connecting rod 10 to the upsetting slider 11 with the punches 12 fixed on it and through the fists 13 and 1, the rollers 15 and 16, the connecting rod 18 and the slider 19 to the side slider 17, to the safety device 20, the system of levers 21-23 , the clamping slider 2k, on which the movable matrix 25 is fixed. At the beginning of the lateral slider movement, it is communicated through the roller 15 by the fist 13, while from the connecting rod 18 the slider 19 also receives movement, but in view of the fact that between the slider 19 and the lateral slider 17 there is a gap during the idle period of the clamping mechanism , the movement of the slide 17 from the connecting rod 19 is not transmitted. Upon further movement of the slider 19 relative to the side slider 17, their speeds are aligned and further movement of the clamping mechanism is carried out from the crank shaft through the connecting rod 18, slider 19, side slider 17, safety device 20, system of levers 21-23 of the clamping slider 2 with a fixed movable matrix 25 . There is a working stroke, and then clamping the matrix with a given force. Upon further rotation of the crank shaft, the slider 19 begins to move away from the side slider 17, the spring 27 ensures that the rollers 15 and 1b contact the corresponding profiles of the cams. Holding the dies in a clamped position is provided by the fist 13. After the precipitation is completed by the outboard slider 11, the latter moves to the rear starting position, while the matrix 25 with the slider 2k also begins to move to the starting position. The clamping slider is retracted by the fist 14 through the roller 16, the side slider 17. the safety device 20, the system of levers 21-23. The slider 19 at this time freely moves in the slider 17. The upset slider 11 and the clamping slider 2k have completed a full cycle, and all the mechanisms are stopped in the initial position. In the following, the cycle is repeated in the described sequence; If the clutch is not turned off, the machine operates in an automatic cycle. The technical and economic efficiency of a horizontal forging machine, made according to the proposed kinematic scheme, allows

reliable clamping of the workpiece with a stable high matrix dies in a clamped position with a force equal to or greater than the nominal landing force, to be stamped with a clamping mechanism with a force equal to or greater than the nominal force of the landing, which will ensure that the number of forgings can be stamped only on a horizontal-forging machine without subsequent rotation Supplies for another type of equipment, which reduces the amount of equipment used.

Claims (1)

1. Nesvit S. I. Gorim. Nunko 0. M., 19b4, umbrella-forging machines. with. 15-32, fig. 7. Vipshim, as well as an additional rod with a slider installed in the individual guides of the side slider.